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EP1967770A3 - Automatic transmission and control method thereof - Google Patents

Automatic transmission and control method thereof Download PDF

Info

Publication number
EP1967770A3
EP1967770A3 EP08003574A EP08003574A EP1967770A3 EP 1967770 A3 EP1967770 A3 EP 1967770A3 EP 08003574 A EP08003574 A EP 08003574A EP 08003574 A EP08003574 A EP 08003574A EP 1967770 A3 EP1967770 A3 EP 1967770A3
Authority
EP
European Patent Office
Prior art keywords
friction element
automatic transmission
control method
failure
specified
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08003574A
Other languages
German (de)
French (fr)
Other versions
EP1967770B1 (en
EP1967770A2 (en
Inventor
Fumitaka Nagashima
Takateru Kawaguchi
Shinya Mochiyama
Yoshihide Shinso
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JATCO Ltd
Original Assignee
JATCO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2007060476A external-priority patent/JP4431590B2/en
Priority claimed from JP2007060442A external-priority patent/JP4436381B2/en
Application filed by JATCO Ltd filed Critical JATCO Ltd
Publication of EP1967770A2 publication Critical patent/EP1967770A2/en
Publication of EP1967770A3 publication Critical patent/EP1967770A3/en
Application granted granted Critical
Publication of EP1967770B1 publication Critical patent/EP1967770B1/en
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F16H2061/1224—Adapting to failures or work around with other constraints, e.g. circumvention by avoiding use of failed parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/68—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings
    • F16H61/684—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings without interruption of drive
    • F16H61/686—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings without interruption of drive with orbital gears

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)

Abstract

In an automatic transmission of this invention, a determination as to whether or not a failure has occurred in a friction element is made repeatedly while a vehicle is traveling, and control to specify the failed friction element is begun when a vehicle speed falls to or below a predetermined value for the first time following detection of the failure in the friction element (S1, S3). When the failed friction element has been specified (S4, S13, S15, S24, S26, S35, S37), usable gear positions are determined on the basis of the specified friction element, whereupon shift control is performed using only the usable gear positions (S5, S14, S16, S25, S27, S36, S38, S39).
EP08003574A 2007-03-09 2008-02-27 Automatic transmission and control method thereof Ceased EP1967770B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007060476A JP4431590B2 (en) 2007-03-09 2007-03-09 Automatic transmission
JP2007060442A JP4436381B2 (en) 2007-03-09 2007-03-09 Automatic transmission

Publications (3)

Publication Number Publication Date
EP1967770A2 EP1967770A2 (en) 2008-09-10
EP1967770A3 true EP1967770A3 (en) 2011-01-26
EP1967770B1 EP1967770B1 (en) 2012-02-08

Family

ID=39310006

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08003574A Ceased EP1967770B1 (en) 2007-03-09 2008-02-27 Automatic transmission and control method thereof

Country Status (3)

Country Link
US (1) US8224542B2 (en)
EP (1) EP1967770B1 (en)
KR (1) KR101469279B1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4404911B2 (en) * 2007-01-09 2010-01-27 ジヤトコ株式会社 Automatic transmission
JP4358248B2 (en) * 2007-03-14 2009-11-04 ジヤトコ株式会社 Automatic transmission
JP4418477B2 (en) * 2007-03-22 2010-02-17 ジヤトコ株式会社 Automatic transmission
CN102661389B (en) * 2012-04-18 2014-11-19 三一重工股份有限公司 Gearbox fault diagnosing device, gearbox fault diagnosing method and gearbox
JP6465204B2 (en) * 2015-03-30 2019-02-06 アイシン・エィ・ダブリュ株式会社 Control device for vehicle drive device
DE102017214588B4 (en) * 2017-08-22 2024-12-05 Zf Friedrichshafen Ag Method and control device for operating a motor vehicle
JP7009936B2 (en) * 2017-11-06 2022-01-26 株式会社デンソー Shift range controller

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5129287A (en) * 1989-12-26 1992-07-14 Toyota Jidosha Kabushiki Kaisha Shift control system and method for automatic transmission
US5515272A (en) * 1993-12-22 1996-05-07 Toyota Jidosha Kabushiki Kaisha Apparatus for diagnosing automatic transmission based on engine speed as compared with reference range
US7107134B1 (en) * 2005-11-18 2006-09-12 Delphi Technologies, Inc. Method of determining a default transmission output speed

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5409434A (en) * 1992-01-30 1995-04-25 Toyota Jidosha Kabushiki Kaisha Control system with failsafe for shift-by-wire automatic transmission
US5251733A (en) * 1992-07-31 1993-10-12 Deere & Company Transmission control with limp-home function
JPH11280886A (en) 1998-03-30 1999-10-15 Mazda Motor Corp Failure detection method and device for automatic transmission
JP2000240785A (en) * 1999-02-18 2000-09-05 Fuji Heavy Ind Ltd Fail-safe method for automatic transmission
JP3991264B2 (en) * 2002-03-18 2007-10-17 アイシン・エィ・ダブリュ株式会社 Control device for automatic transmission
JP4220494B2 (en) 2005-05-31 2009-02-04 ジヤトコ株式会社 Automatic transmission failure control device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5129287A (en) * 1989-12-26 1992-07-14 Toyota Jidosha Kabushiki Kaisha Shift control system and method for automatic transmission
US5515272A (en) * 1993-12-22 1996-05-07 Toyota Jidosha Kabushiki Kaisha Apparatus for diagnosing automatic transmission based on engine speed as compared with reference range
US7107134B1 (en) * 2005-11-18 2006-09-12 Delphi Technologies, Inc. Method of determining a default transmission output speed

Also Published As

Publication number Publication date
US8224542B2 (en) 2012-07-17
KR101469279B1 (en) 2014-12-04
KR20080082899A (en) 2008-09-12
EP1967770B1 (en) 2012-02-08
EP1967770A2 (en) 2008-09-10
US20080221764A1 (en) 2008-09-11

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